Magnetic circularly polarized luminescence of zinc phthalocyanine in an argon matrix

• Published in: Journal of physical chemistry (1952) Vol. 94; no. 7; pp. 2828 - 2832
• Main Authors: Metcalf, David H, VanCott, Thomas C, Snyder, Seth W, Schatz, Paul N, Williamson, Bryce E
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 05.04.1990
• Subjects: 400500 - Photochemistry; Atomic and molecular physics; DATA; DATA ANALYSIS; DYES; ELEMENTS; Exact sciences and technology; EXPERIMENTAL DATA; HETEROCYCLIC COMPOUNDS; INFORMATION; INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; LUMINESCENCE; MEASURING INSTRUMENTS; MEASURING METHODS; METALS; Molecular properties and interactions with photons; NUMERICAL DATA; Optical activity and dichroism; magnetooptical and electrooptical spectra; ORGANIC COMPOUNDS; PHTHALOCYANINES; Physics; ZINC; Matrix isolation; Phthalocyanine; Circular polarization; Nitrogen heterocycle; Organic ligand; Transition metal Carbonyl Complexes; Experimental study; Zinc Complexes; Luminescence spectrum; Inorganic compound; Macrocycle
• ISSN: 0022-3654; 1541-5740
• DOI: 10.1021/j100370a020

The magnetic circularly polarized luminescence (MCPL) of the Q transition of zinc phthalocyanine has been measured in an argon matrix. These are the first such measurements for a matrix-isolated sample and support previous interpretations that require a crystal-field-stabilized Jahn-Teller splitting in the {sup 1}E{sub u}({pi}{sup *}) excited state. A moment analysis indicates the presence of a Ham effect which reduces the orbital angular momentum of this state by about 30%. Energy transfer between inequivalent sites in the matrix results in a red shift of the emission relative to the Q(0,0) absorption band.